Appendices
A-166
G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
Event name Command Warning Event code 74800000 hex
Meaning A command could not be executed.
Source EtherCAT Master Function Module Source details Slave Detection
timing
Continuously
Error attributes Level Observation Recovery --- Log category System
Effects User program Continues. Operation Not affected.
Indicators EtherCAT NET RUN EtherCAT NET ERR EtherCAT LINK/ACT
--- --- ---
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Remedy Prevention
The absolute multi-rotation counter
was cleared when the Servo was not
OFF when using an absolute encoder
for semi-closed control.
Make sure that the settings meet the
object’s operation conditions. Check
the drive prohibition input and
operation command, and take actions
accordingly.
Make sure that the settings meet the
object’s operation conditions. Check
the drive prohibition input and
operation command, and take actions
accordingly.
A forced brake operation request was
sent while the Servo was ON.
A Switch ON command was sent
when the main power was OFF.
(When 3508 hex = 0)
An Enable Operation command was
sent to request turning ON the Servo
when the Servomotor was operating
at 30 r/min or higher.
A latch operation was started under
the following conditions.
• An absolute external encoder was
used and phase Z was selected as
the trigger for fully-closed control.
• The absolute multi-rotation data
was being cleared or the Config
operation was being performed.
• The Statusword (6041 hex) bit 09
(remote) was 0 (local).
An operation command is given in the
prohibited direction after the motor
made an immediate stop due to a
drive prohibition input.
Attached
information
None
Precautions/
Remarks
“B1” is displayed on the front panel of the Servo Drive.
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